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3. "May 2007 State Occupational Employment and Wage Estimates: Virginia." U.S. Department of Labor Bureau of Labor Statistics. May 2007. 14 April 2010. http://www.bls.gov./oes/current/oes_va.htm
2. "Virginia Career View." Virginia Polytechnic Institute. Blacksburgh, Virginia. 2009. 1 March 2010. http://www.vaview.org
3. "May 2007 State Occupational Employment and Wage Estimates: Virginia." U.S. Department of Labor Bureau of Labor Statistics. May 2007. 14 April 2010. http://www.bls.gov./oes/current/oes_va.htm
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